Add go2rtc debug_ui yaml key to enable go2rtc ui

[edenhaus]

Breaking change

Proposed change

Add possibility to enable go2rtc UI of the HA managed server. Helpful if you need to debug something WebRTC related
For that reason it should be also added to the beta

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
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Checklist

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[home-assistant]

Hey there @home-assistant/core, mind taking a look at this pull request as it has been labeled with an integration (go2rtc) you are listed as a code owner for? Thanks!

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